Finding the Fourth Proportional to 745,202.70, 1,028,350.89 and 422,893.62
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Solution
The fourth proportional to 745,202.70, 1,028,350.89 and 422,893.62 is: 583,576.83
Step by Step Solution
- Step 1: Write the proportion equation
745,202.70 : 1,028,350.89 = 422,893.62 : x - Step 2: Convert to fraction form
745,202.70/1,028,350.89 = 422,893.62/x - Step 3: Cross multiply
745,202.70x = 1,028,350.89 × 422,893.62 - Step 4: Simplify right side
745,202.70x = 434,883,030,502.32 - Step 5: Solve for x
x = 434,883,030,502.32/745,202.70 - Step 6: Final answer
x = 583,576.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.